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Catholic AnswerThe priest wears a white chasuble (gold may be worn) and stole on Easter, and throughout the Easter Season, including Divine Mercy, and Ascension.white for purity
White vestments are worn
White or gold are the colors of the day.
A priest's vestment is generally white when it's Easter. On special occasions, however, a priest might wear gold in white's place.
papal serape
It is an outer vestment worn by a priest.
The most common color worn by priests is green, which is the color for Ordinary Time. White (or gold) is worn for the Seasons of Christmas and Easter. It is also worn on feasts of Our Blessed Lord (saving His Passion), Feasts of the Blessed Mother, and Feasts of the Saints who were not martyrs. Violet is worn during Advent and Lent, it is also worn when hearing confessions, and sometimes during funerals. Red is worn during Feasts of Martyrs, Feasts of the Holy Spirit, and on Good Friday.
The priest wears white vestments on Easter Sunday, and on all Sundays and weekdays of the Easter season. The white vestments signify resurrection and are also used for masses of the dead, saints' feast days, and other feasts of Our Blessed Lord. Gold may always be substituted for white on special feasts like Easter.
Pallium
Green would be worn on her feast day as it occurs during Ordinary Time.
White or blue vestments may be worn on this Feast Day. The color blue is permitted only on Feast Days dedicated to the Blessed Virgin as it was her favorite color.
A chasuble is a vestment worn by priests when they are saying mass. It is sleeveless, and is worn as an outer vestment. It is often quite decorated, and has the colors of the liturgical season. There is a link below to an article on the chasuble.
If an altar server is wearing a black or red vestment that is full length that is called a cassock. A short white vestment worn over the black or red long vestment is called a surplice. A white vestment if full length is called an alb .